These results suggest that a KD might be an alternative dietary approach to decrease fat mass and visceral adipose tissue without decreasing lean body mass; however, it might not be useful to increase muscle mass during positive energy balance in men undergoing RT for 8 weeks.
Efficacy of ketogenic diet on body composition during resistance training in trained men: a randomized controlled trial
References:
Vargas (2021). “Efficacy of ketogenic diet on body composition during resistance training in trained men: a randomized controlled trial.” Jounral of the International Society of Sports Nutrition